/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Microsoft Corporation
 * 
 * -=- Robust Distributed System Nucleus (rDSN) -=- 
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

/*
 * Description:
 *     What is this file about?
 *
 * Revision history:
 *     xxxx-xx-xx, author, first version
 *     xxxx-xx-xx, author, fix bug about xxx
 */

# pragma once
# include <dsn/cpp/cli.h>
# include <iostream>


namespace dsn {
    class cli_client
        : public virtual ::dsn::clientlet
    {
    public:
        cli_client(::dsn::rpc_address server) { _server = server; }
        cli_client() { }
        virtual ~cli_client() {}


        // ---------- call RPC_CLI_CLI_CALL ------------
        // - synchronous
        std::pair< ::dsn::error_code, std::string> call_sync(
            const command& args,
            std::chrono::milliseconds timeout = std::chrono::milliseconds(0),
            int thread_hash = 0,
            uint64_t partition_hash = 0,
            dsn::optional< ::dsn::rpc_address> server_addr = dsn::none
            )
        {
            return ::dsn::rpc::wait_and_unwrap<std::string>(
                ::dsn::rpc::call(
                    server_addr.unwrap_or(_server),
                    RPC_CLI_CLI_CALL,
                    args,
                    nullptr,
                    empty_callback,
                    timeout,
                    thread_hash,
                    partition_hash
                    )
                );
        }

        // - asynchronous with on-stack command and std::string
        template<typename TCallback>
        ::dsn::task_ptr call(
            const command& args,
            TCallback&& callback,
            std::chrono::milliseconds timeout = std::chrono::milliseconds(0),
            int thread_hash = 0,
            uint64_t partition_hash = 0,
            int reply_thread_hash = 0,
            dsn::optional< ::dsn::rpc_address> server_addr = dsn::none
            )
        {
            return ::dsn::rpc::call(
                server_addr.unwrap_or(_server),
                RPC_CLI_CLI_CALL,
                args,
                this,
                std::forward<TCallback>(callback),
                timeout,
                thread_hash,
                partition_hash,
                reply_thread_hash
                );
        }

    private:
        ::dsn::rpc_address _server;
    };

}